Dobutamine Impurity 26 CAS 243139-71-1
| CAS No. | 243139-71-1 |
| Molecular Formula | C7H4ClF3 |
| Molecular Weight | 180.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dobutamine Impurity 26 is closely related to fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Dobutamine Impurity 26 (CAS 243139-71-1) is a certified pharmaceutical impurity reference standard with the molecular formula C7H4ClF3 and a molecular weight of 180.55 g/mol.
Structurally, Dobutamine Impurity 26 (C7H4ClF3) contains fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 180.55 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Dobutamine Impurity 26 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H4ClF3 |
| Molecular Weight | 180.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
Related Dobutamine Standards
- Dobutamine Impurity 6 (CAS 67952-38-9)
- Dobutamine Impurity 4 (CAS 104-20-1)
- Dobutamine Impurity 27 (CAS 93-17-4)
- Dobutamine Impurity 5 (CAS 69617-84-1)
- Dobutamine EP Impurity B (CAS 5471-51-2)
- Dobutamine Impurity 54 (CAS CATO-C4X-129854)
- Dobutamine Impurity 52 (CAS 1059182-81-8)
- (Z)-Dobutamine Impurity 21 (CAS CATO-C4X-129821)
Recommended Standards
- 5-(chloromethyl)-1,2,3-trifluoro-Benzene (CAS 732306-27-3)
- 2-Chlorobenzotrifluoride (CAS 88-16-4)
- 2-Chloro-1-(difluoromethyl)-4-fluorobenzene (CAS 845866-83-3)
- 3-Chlorobenzotrifluoride (CAS 98-15-7)
- Venlafaxine Impurity 74 (CAS CATO-C4X-143474)
- Famciclovir Impurity 28 (CAS CATO-C4X-164228)
- Ibrutinib Impurity 104 (CAS CATO-C4X-1064104)
- methyl 4,5-dihydro-1H-imidazole-4-carboxylate hydrochloride (CAS 1394729-60-2)
- 2-benzyl-4-(chloromethyl)-1,3-thiazole (CAS 36916-36-6)
- N-(5,6-Dihydro-4H-cyclopenta[c]isoxazol-3-yl)-7-methoxybenzofuran-2-carboxamide (CAS 941967-00-6)
- 3-Bromo-4-methyl-N-(2,2,2-trifluoroethyl)aniline (CAS 1343245-72-6)
- (R)-Methyl 2-amino-2,4-dimethylpentanoate hydrochloride (CAS 154510-54-0)
- 6-Bromobenzo[b]thiophen-7-ol (CAS 87279-85-4)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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